Convert the rectangular coordinates to polar coordinates wit
Convert the rectangular coordinates to polar coordinates with
r > 0 and 0 < 2
- square root of 6, -square root of 2
Solution
in polar coordinates x=rcos, y=rsin ,x2+y2=r2
given x=-6 , y=-2
r2=(-6)2+(-2)2
r2=6+2
r2=8
r=22
=+tan-1(2/6)
=+tan-1(1/3)
polarcoordinates are (r,)=(22 ,+tan-1(1/3)) or (r,)=(22 ,3.463)
